Common conditions for which cannabinoids are used are chronic pain, cancer, chemotherapy-induced nausea and vomiting, anorexia and weight loss associated with HIV, irritable bowel syndrome, degenerative neurological conditions, epilepsy, spasticity, Tourette syndrome, amyotrophic lateral sclerosis, cachexia, Huntington's disease, Parkinson's disease, dystonia, dementia, glaucoma, traumatic brain injury, addiction, anxiety, depression, sleep disorders, posttraumatic stress disorder, and schizophrenia and other psychoses.